Hello Rohan,
Asexual reproduction is a type of reproduction which does not involve the fusion of gametes or change in the number of chromosomes.
Common forms of asexual reproduction are as follows:
Budding (form of asexual reproduction where an offspring grows out of the body of the parent, then breaks off into a new individual) - Hydra
Gemmules (form of asexual reproduction where a parent releases a specialized mass of cells that can develop into offspring) - Sponges
Fragmentation (type of asexual reproduction where the body of the parent breaks into distinct pieces, each of which can produce an offspring) - Planaria
Regeneration (form of asexual reproduction where a new individual develops from a part of another) - Echinoderms
Binary Fission (type of asexual reproduction where the parent cell duplicates its organelles and increases in size by mitosis and the cell then divides into two identical daughter cells) - Paramoecium
Parthenogenesis (asexual reproduction that involves the development of an egg that has not been fertilized into an individual) - Water Fleas
Hope this helps you. We wish you the best for your future endeavours!
Regards
Hello Student ,
Asexual Reproduction is of several types .It is also known as agamogenesis or agamogeny:
1) Fission : Body of parent individual divides into two or more similar daughter individuals.
2) Pasmotomy : Division of multinucleate protozoan into multinucleate daughter individuals. Eg- Opalina
3)Budding : In budding a small external outgrowth appears over parent's body which later develops into a miniature individual. It then seperates from the parent body. Eg - Hydra
4)Gemmulation : The parent individual produces specialised mass of cells enclosed in common opaque envelope to form gemmule. Eg - Sponges
5) Fragmentation : Parents body breaks into distinct pieces each of which develop into a independent individual. Eg - Bryophytes
6)Zoospores and Conidia : This is seen in members of kingdom Fungi.
7) Vegetative Reproduction : Seen in plants mainly. The produce new individuals from underground stem,leaves,roots and other vegetative structures.
8) Special Case : Encystation and Sporulation
Seen in Amoeba , During adverse condition it secretes a three layered , hard , chitinious covering around itself .This phenomenon is termed as encystation . During favourable condition amoeba divides by multiple fission and produces numerous minute amoeba or pseudopodiospores. T he cyst wall bursts out and spores are liberated. This is known has sporulation.
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